Scat 440076 421 Chevy Crankshaft, 3.875 Stroke, 400 Main

#91515574

Scat 440076 421 Chevy Crankshaft, 3.875 Stroke, 400 Main

Designed and engineered at SCAT
Features straight shot & chamfered oil holes
Has a 2.100" rod pin and weighs only 55 lbs.

Type:

3.875" Stroke / 400 Mains

3.48" Stroke 3.75" Stroke / 350 Mains 3.75" Stroke / 400 Mains 3.875" STroke / 350 Mains4.00" Stroke / 350 Mains 4.00" Stroke / 400 Mains

$926.99

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Product Summary

3.875" Stroke, 400 mains Main Journal Style

Designed and engineered at SCAT
Features straight shot & chamfered oil holes
Has a 2.100" rod pin and weighs only 55 lbs.
It is nitride hardened for superior wear resistance
Internally balanced to use neutral balance dampers, flywheels or flexplate

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Key Specs

Stroke	3.875"
Main Journal Style	400 mains
Crankshaft Material	Forged 4340 Steel
Main Journal Diameter	2.648"
Rod Journal Diameter	2.100"

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Scat 440076 Details

As you make more and more power it becomes more important to use quality parts. These Scat 4340 forged steel cranks will help keep your motor alive.

Straight shot & chamfered oil holes
Nitride hardened for superior wear reisistance
Lightening holes in all rod throws
Large radius on all journals
Heat treated, shot peened
Designed at SCAT
Engineered at SCAT
Inspected & micropolished at SCAT
For 2-piece rear main blocks
Internally balanced to use neutral balance dampers, flywheels or flexplates
2.100" rod pin
55 lbs.

Item Details

3.875" stroke - 400 mains - 6.0" rods

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

CARB warning

Scat 440076 Specifications

KEY SPECS
MFG. Part #	440076
Brand	Scat
Stroke	3.875"
Main Journal Style	400 mains
Crankshaft Material	Forged 4340 Steel
Main Journal Diameter	2.648"
Rod Journal Diameter	2.100"
Rear Main Seal Style	2-piece
Weight	55 lbs.

GENERAL
Connecting Rod Length	6.000"
GTIN Code	846091012450
Notes	internally balanced
Sold in Quantity	Each

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Questions & Answers

2 Questions • 2 Answers

Sort Questions

What main and rod bearings would you recommend?

by Bill

• 4 years ago

1 answer

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Will these work in a stock 509 block?

by Magnum tater

• 7 years ago

1 answer

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2 of 2 questions shown